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Radon
Radon (Rn) is one of six noble gases. Radon is radioactive, causing it to be a health concern.
430 Questions
What is the energy and matter released by radon gas that causes health concerns called?
The answer sought here might be ionizing radiation. Ionizing radiation comes in a couple of "flavors" as we know it. One is particulate radiation, and it involves a particle of some kind. The other is electromagnetic radiation, and it involves a "ray" or the like. Radon undergoes what is called radioactive or nuclear decay. 222Rn, the isotope of concern with radon, emits an alpha particle to decay. The alpha particle is two protons and two neutrons - a helium nucleus. This particle has very poor penetrating power. A sheet of paper will stop it. But radon is an inert gas, and if a person breathes in radon, even in small quantities, the alpha decay of radon in the lungs exposes soft tissue to terrible biological damage from the alpha particles. What's worse, the radon becomes polonium - another radioactive substance. Radon that is inhaled and undergoes radioactive (alpha) decay in the lungs has 7 more radioactive decays to go before becoming a stable isotope of lead. And each decay event further exposes local (and the same) tissue to heavy biological damage. Radon causes more lung cancer than most individuals know about.
What danger does radon gas pose?
Radon gas is radioactive, and as a gas, it is much more dangerous than a liquid or solid because it is airborne and can be inspired. If you breathe in radon and it undergoes radioactive decay inside your lungs, there will be some heavy biological damage. Additionally, the decay products in the decay chain from radon are all radioactive solids, and they have a low probability of being exhaled. You will effectively be stuck with a tiny radioactive source inside you. Radon decays through several steps to get to a stable isotope of lead, and all the decay events are high energy events as far as soft tissue, point blank biological damage. They're alpha and beta decay events. Radon is suspected as a leading cause of lung cancer. Radiation does that to tissue.
The Lewis structure of CO2 consists of a carbon atom double-bonded to each of two oxygen atoms, with each oxygen also bearing two lone pairs. This arrangement satisfies the octet rule for all atoms involved.
How much ink does the Bureau of Engraving and Printings use every day?
Ripley says it's 10 million tons but I don't believe it.
What happens to Berkelium when superheated?
When superheated, Berkelium would likely decompose and release radioactive particles and energy. This could lead to the formation of smaller elements through nuclear reactions, along with the release of heat and radiation. Overall, superheating Berkelium would result in breaking down its atomic structure and transforming it into different elements.
Will Xango help cure cancer It is a mangosteen fruit pulp .?
There is no scientific evidence to suggest that Xango or mangosteen fruit pulp can cure cancer. It is always best to rely on proven medical treatments prescribed by healthcare professionals for cancer management. Remember to consult with your doctor before trying any alternative or complementary therapies.
Will radon gas cause high mercury levels in the body?
No. Nothing about radon has anything to do with mercury. Mercury is certainly not an element in the decay chain of radon on its way to becoming a stable isotope of lead. And radon is an inert gas. It can, under the most extreme conditions, be compounded with fluorine, but mercury? Forget it. It ain't happenin'. Note that radon is a radioactive hazard, and we need to be up to speed on what it is, how it works, the probability or our being at risk of exposure and what to do to mitigate radon buildup.
Typically a Quad-level home is a Tri-Level home that has a partial basement. A Tri-level home is usually built on a slab foundation and has three living areas all considered to be "above ground". A Quad-level has these three areas plus a basement area. There are a few Quads (1 in 1000) that are basically a Tri-level with a fourth level on the top side, as an appraiser I've seen one of these in 5 years. Real Estate agents will often call Quad-level homes Colonials, Cape Cods or Split-level homes.
What was used to limit the use of products during wartime?
Rationing was used during wartime to limit the use of products by distributing goods and resources among the population in a controlled and fair manner. Coupons or ration cards were issued to ensure that everyone received their fair share of essential items like food, clothing, fuel, and other goods.
If you have an old farm house without a basement where can you install a gas furnace?
If you do not have a basement, you can consider installing the gas furnace in a closet on the main floor or in an appropriate utility room. It's important to ensure the space meets the specific requirements for clearances and ventilation outlined by the manufacturer and local building codes. Professional installation by a licensed HVAC technician is recommended for safety and compliance.
Is bactometer a rapid testing or traditional testing method?
Technically it is a rapid test method- since it is based on the measurement of an endpoint that typically occurs earlier than the endpoint of a classical micro method, which of course is the visual detection of growth - seen either as turbidty or colonies by the human eye. It does however have some ties to classical methods- it still is growth based.
How many electrons are in each shell around the nucleus of radon?
The number of electrons in the shells around a radon nucleus are: 2, 8, 18, 32, 18 and 8.
She has lost confident, you have got work to do: be stable and keep up with it until her confidence come back, should take time....
good luck
Women want to be SHOWN affection (I dont mean sex). Remember little things - like buy her favorite type of snack food. Rent a movie you know she loves or has "mentioned" that she wants to see. Pay attention to things she says, and try to act on them in a subtle way. I'm not saying spend tons of money. I'm saying to just do little things that you know she likes.
What is the Lewis dot structure for CN?
The Lewis Dot structure of Cyanide ion starts with a C atom connected to a N atom with three dashes. On the opposite sides on each atom are two dots for the unshared valence electrons. Because it is an ion, it is bracketed and a - superscript is placed after it.
What can be a chemical testing method for polyacrylic acid content determination in any product?
The carboxylic acid group may be detectable using FTIR which transmits through the sample. ATR-IR may provide a surface concentration. Of course, a calibration with known amounts of PAA would need to be prepared in advance in order to measure quantitatively. Titrating the acid group may be another option. If the PAA content is high, the product may swell in water more than at low concentrations. This may be an indirect method.
In the Lewis dot structure for Ag2O, each silver atom will have a +1 charge, while oxygen will have a -2 charge. This results in a structure where each Ag atom is bonded to an O atom with a double bond, and each O atom has two lone pairs around it.
What is the Lewis dot structure of CH2F2?
Carbon is the middle atom, there are no double bonds you just add the 4 other atoms around it in a tetrahedral structure (if you haven't done this yet don't worry about it)
..
:H:
.. l ..
:F-C-F:
'' l ''
:H:
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hope that works out :S
How do you treat chemical poisoning by mouth?
If someone has ingested a toxic chemical, immediately call emergency services for help. Do not induce vomiting unless advised by medical professionals. Provide any information about the substance ingested to assist with treatment.
Where did the cloze testing method originate?
It came from Gestaltist Principle of The law of closure: People tend to fill in missing pieces to form a complete picture. However, it is back formation from closure to cloze, not cloze method though.
What are the elements and compounds found in the industry?
Compare and contrast elements and compounds Elements: Elements are the basic substances out of which all matter is composed. Everything in the world is made up from only 109 different elements. 90% of the human body is composed of only three elements: Oxygen, Carbon and Hydrogen Elements are known by common names as well as by their abbreviations. These consisting of one or two letters, with the first one capitalized. These abbreviations are derived from English or foreign words (e.g. Latin, German). A chemical element, or element for short, is a type of atom that is defined by its atomic number; that is, by the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons.[1]
Common examples of elements are hydrogen, nitrogen, and carbon. In total, 117 elements have been observed as of 2007, of which 94, i.e. plutonium and below, occur naturally on Earth. Elements with atomic numbers greater than 82 (i.e., bismuth and those above), are inherently unstable and undergo radioactive decay. In addition, elements 43 and 61 (technetium and promethium) have no stable isotopes, and also decay. However, the unstable elements up to atomic number 94 with no stable nuclei are found in nature as a result of the natural decay processes of uranium and thorium. [2] All chemical matter consists of these elements. New elements are discovered from time to time through artificial nuclear reactions.
The term 'elements' (stoicheia) was first used by the Greek philosopher Plato in about 360 BC, in his dialogue Times, which includes a discussion of the composition of inorganic and organic bodies and is a rudimentary treatise on chemistry. Plato assumed that the minute particle of each element had a special geometric shape: tetrahedron (fire), octahedron (air), icosahedron (water), and cube (earth).[3]
Tetrahedron (fire) Octahedron (air) Icosahedron (water) Cube (earth)
Adding to the four elements of the Greek philosopher Empedocles, in about 350 BC, Aristotle also used the term "element" and conceived of a fifth element called "quintessence", which formed the heavens. Aristotle defined an element as: Element - one of those bodies into which other bodies can be decomposed and which it self is not capable of being divided into other. [4]
In 1661, Robert Boyle showed that there were more than just four classical elements as the ancients had assumed.[5] The first modern list of chemical elements was given in Antoine Lavoisier's 1789 Elements of Chemistry, which contained thirty-three elements, including light and caloric. By 1818, Jöns Jakob Berzelius had determined atomic weights for forty-five of the forty-nine accepted elements. In 1869, in Mendeleev's famous periodic table, shown below, there were sixty-six elements.
Mendeleev's 1869 periodic table
From Boyle until the early 20th century, an element was defined as a pure substance that cannot be decomposed into any simpler substance.[5] Said another way, an "element" cannot be transformed into other chemical substances by chemical processes. In 1913, Henry Moseley discovered that the physical basis of the atomic number of the atom was its nuclear charge, which eventually led to the current definition. The current definition also avoids some ambiguities due to isotopes and allotropes. By 1919, there were seventy-two known elements.[6] In 1955, element 101 was discovered and named mendelevium in honor of Mendeleev, the first to arrange the elements in a periodic manner. In October of 2006, the synthesis of element 118 was reported; however, element 117 has not yet been created in the laboratory.
Description:
The lightest elements are hydrogen and helium. All the heavier elements are made, both naturally and artificially, through various methods of nucleosynthesis, including occasionally nuclear fission.
As of 2006, there are 117 known elements (in this context, "known" means observed well enough, even from just a few decay products, to have been differentiated from any other element).[7][8] Of these 117 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94. These 94 elements, and also possibly element 98 californium, have been detected in the universe at large, in the spectra of stars and also supernovae, where short-lived radioactive elements are newly being made. The remaining 22 elements not found on Earth or in astronomical spectra have been derived artificially. All of the solely-artificially derived elements are radioactive with very short half-lives; if any atoms of these elements were present at the formation of Earth, they are extremely likely to have already decayed, and if present in novae, have are in quantities too small to have been noted. Technetium was the first purportedly non-naturally occurring element to be synthesized, in 1937, although trace amounts of technetium have since been found in nature, and the element may have been discovered naturally in 1925. This pattern of artificial production and later natural discovery has been repeated with several other radioactive naturally-occurring trace elements.
Lists of the elements by name, by symbol, by atomic number, by density, by melting point, and by boiling point as well as Ionization energies of the elements are available. The most convenient presentation of the elements is in the periodic table, which groups elements with similar chemical properties together. Element Abbreviation Carbon C Fluorine F Hydrogen H Iodine I Nitrogen N Oxygen O Phosphorus P Sulfur S Aluminum Al Barium Ba Calcium Ca Chlorine Cl Helium He Magnesium Mg Platinum Pt Silicon Si Copper Cu (from cuprum) Iron Fe (from ferrum) Lead Pb (from plumbum) Mercury Hg (from hydrargyrum)Potassium K (from kalium) Silver Ag (from argentum) Sodium Na (from natrium) Tin Sn (from stannum)Compounds:Compounds are substances of two or more elements united chemically in definite proportions by mass. For example, pure water is composed of the elements hydrogen (H) and oxygen (O) at the defined ratio of 11 % hydrogen and 89 % oxygen by mass. The observation that the elemental composition of a pure compound is always the same is known as the law of constant composition (or the law of definite proportions). It is credited to the French chemist Joseph Louis Proust (1754-1826). A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds. When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of. A chemical formula is used a quick way to show the composition of compounds. Letters, numbers, and symbols are used to represent elements and the number of elements in each compound.Substances are either elements are compounds. Elements are substances in their simplest form that cannot be separated further through chemical reactions. Examples of elements are oxygen (O2), carbon (C2), and hydrogen (H2). Compounds are compositions of two or more elements. Examples or compounds are water (H2O), carbon dioxide (CO2), and sodium chloride - table salt (NaCl). Elements are materials that cannot be reduced further whereas compounds can be. Compounds do things by interacting with their environments, elements remain inert. This is very basic chemistry and physics. Compare and contrast elements and compounds Elements: Elements are the basic substances out of which all matter is composed. Everything in the world is made up from only 109 different elements. 90% of the human body is composed of only three elements: Oxygen, Carbon and Hydrogen Elements are known by common names as well as by their abbreviations. These consisting of one or two letters, with the first one capitalized. These abbreviations are derived from English or foreign words (e.g. Latin, German). A chemical element, or element for short, is a type of atom that is defined by its atomic number; that is, by the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons.[1]
Common examples of elements are hydrogen, nitrogen, and carbon. In total, 117 elements have been observed as of 2007, of which 94, i.e. plutonium and below, occur naturally on Earth. Elements with atomic numbers greater than 82 (i.e., bismuth and those above), are inherently unstable and undergo radioactive decay. In addition, elements 43 and 61 (technetium and promethium) have no stable isotopes, and also decay. However, the unstable elements up to atomic number 94 with no stable nuclei are found in nature as a result of the natural decay processes of uranium and thorium. [2] All chemical matter consists of these elements. New elements are discovered from time to time through artificial nuclear reactions.
The term 'elements' (stoicheia) was first used by the Greek philosopher Plato in about 360 BC, in his dialogue Times, which includes a discussion of the composition of inorganic and organic bodies and is a rudimentary treatise on chemistry. Plato assumed that the minute particle of each element had a special geometric shape: tetrahedron (fire), octahedron (air), icosahedron (water), and cube (earth).[3]
Tetrahedron (fire) Octahedron (air) Icosahedron (water) Cube (earth)
Adding to the four elements of the Greek philosopher Empedocles, in about 350 BC, Aristotle also used the term "element" and conceived of a fifth element called "quintessence", which formed the heavens. Aristotle defined an element as: Element - one of those bodies into which other bodies can be decomposed and which it self is not capable of being divided into other. [4]
In 1661, Robert Boyle showed that there were more than just four classical elements as the ancients had assumed.[5] The first modern list of chemical elements was given in Antoine Lavoisier's 1789 Elements of Chemistry, which contained thirty-three elements, including light and caloric. By 1818, Jöns Jakob Berzelius had determined atomic weights for forty-five of the forty-nine accepted elements. In 1869, in Mendeleev's famous periodic table, shown below, there were sixty-six elements.
Mendeleev's 1869 periodic table
From Boyle until the early 20th century, an element was defined as a pure substance that cannot be decomposed into any simpler substance.[5] Said another way, an "element" cannot be transformed into other chemical substances by chemical processes. In 1913, Henry Moseley discovered that the physical basis of the atomic number of the atom was its nuclear charge, which eventually led to the current definition. The current definition also avoids some ambiguities due to isotopes and allotropes. By 1919, there were seventy-two known elements.[6] In 1955, element 101 was discovered and named mendelevium in honor of Mendeleev, the first to arrange the elements in a periodic manner. In October of 2006, the synthesis of element 118 was reported; however, element 117 has not yet been created in the laboratory.
Description:
The lightest elements are hydrogen and helium. All the heavier elements are made, both naturally and artificially, through various methods of nucleosynthesis, including occasionally nuclear fission.
As of 2006, there are 117 known elements (in this context, "known" means observed well enough, even from just a few decay products, to have been differentiated from any other element).[7][8] Of these 117 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94. These 94 elements, and also possibly element 98 californium, have been detected in the universe at large, in the spectra of stars and also supernovae, where short-lived radioactive elements are newly being made. The remaining 22 elements not found on Earth or in astronomical spectra have been derived artificially. All of the solely-artificially derived elements are radioactive with very short half-lives; if any atoms of these elements were present at the formation of Earth, they are extremely likely to have already decayed, and if present in novae, have are in quantities too small to have been noted. Technetium was the first purportedly non-naturally occurring element to be synthesized, in 1937, although trace amounts of technetium have since been found in nature, and the element may have been discovered naturally in 1925. This pattern of artificial production and later natural discovery has been repeated with several other radioactive naturally-occurring trace elements.
Lists of the elements by name, by symbol, by atomic number, by density, by melting point, and by boiling point as well as Ionization energies of the elements are available. The most convenient presentation of the elements is in the periodic table, which groups elements with similar chemical properties together. Element Abbreviation Carbon C Fluorine F Hydrogen H Iodine I Nitrogen N Oxygen O Phosphorus P Sulfur S Aluminum Al Barium Ba Calcium Ca Chlorine Cl Helium He Magnesium Mg Platinum Pt Silicon Si Copper Cu (from cuprum) Iron Fe (from ferrum) Lead Pb (from plumbum) Mercury Hg (from hydrargyrum)Potassium K (from kalium) Silver Ag (from argentum) Sodium Na (from natrium) Tin Sn (from stannum)Compounds:Compounds are substances of two or more elements united chemically in definite proportions by mass. For example, pure water is composed of the elements hydrogen (H) and oxygen (O) at the defined ratio of 11 % hydrogen and 89 % oxygen by mass. The observation that the elemental composition of a pure compound is always the same is known as the law of constant composition (or the law of definite proportions). It is credited to the French chemist Joseph Louis Proust (1754-1826). A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds. When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of. A chemical formula is used a quick way to show the composition of compounds. Letters, numbers, and symbols are used to represent elements and the number of elements in each compound.Substances are either elements are compounds. Elements are substances in their simplest form that cannot be separated further through chemical reactions. Examples of elements are oxygen (O2), carbon (C2), and hydrogen (H2). Compounds are compositions of two or more elements. Examples or compounds are water (H2O), carbon dioxide (CO2), and sodium chloride - table salt (NaCl). Elements are materials that cannot be reduced further whereas compounds can be. Compounds do things by interacting with their environments, elements remain inert. This is very basic chemistry and physics.
What is the atomic number of radon?
The atomic number of radon (Rn) is 86.
The atomic weight of Rn is 222 grams per mole.
What is the country of origin of baltic brown granite countertops?
India is the best country for brown granite stone. It is used in countertop and kitchen platform. It looks rich in home and give royal look. We laxmigour marble provide you in an affordable price. For more information visit our website.
Are gladiolas toxic to people?
Yes. The corms have a greater concentration of the toxic substance, but both corms and leaves have some toxicity. Symptoms of poisoning would include gastro-intestinal symptoms.
Another answer: Gladiolus is a 1 on the level of 1-10, 10 being deadly. foxglove and oleander are more harmful if concerned about human and pet health.
1977 Jaguar XJ6 firing order and which one is number 1 piston?
The firing order for a 1977 Jaguar XJ6 is 1-5-3-6-2-4. The number 1 piston is typically located at the front of the engine near the accessory belt system. You can identify it by referencing the engine block or consulting the vehicle's service manual.
What can be done to prevent or decrease radon exposure in your home?
Radon is present in soil rock and water, due to air pressure differences radon is vacuumed into buildings. Sealing crack, and home re-pressurization and heat recovery ventilator are favored radon reduction methods.
